Measurements:
°C
°F
CURRENT WEATHER
17:26
New Castle
76°F
SE 6 mph
Feels like: 80°F
Precip: 5%
World Resorts USA New Castle Weather

14 Day Weather Forecast

08.25
tue
DAY
80°F
SE 9 mph
precip
3%
NIGHT
70°F
SE 4 mph
precip
7%
08.26
wed
DAY
82°F
N 4 mph
precip
11%
NIGHT
72°F
N 5 mph
precip
20%
08.27
thu
DAY
84°F
N 12 mph
precip
23%
NIGHT
72°F
N 4 mph
precip
37%
08.28
fri
DAY
88°F
NE 4 mph
precip
3%
NIGHT
74°F
SW 6 mph
precip
21%
08.29
sat
DAY
80°F
SW 4 mph
precip
5%
NIGHT
70°F
NW 3 mph
precip
13%
08.30
sun
DAY
86°F
N 6 mph
precip
4%
NIGHT
76°F
E 4 mph
precip
22%
08.31
mon
DAY
76°F
SE 4 mph
precip
43%
NIGHT
76°F
E 3 mph
precip
23%
09.01
tue
DAY
90°F
NE 9 mph
precip
12%
NIGHT
74°F
NE 8 mph
precip
59%
09.02
wed
DAY
78°F
E 11 mph
precip
5%
NIGHT
66°F
S 7 mph
precip
15%
09.03
thu
DAY
70°F
SE 7 mph
precip
3%
NIGHT
62°F
SE 6 mph
precip
4%
09.04
fri
DAY
72°F
SE 9 mph
precip
5%
NIGHT
64°F
N 3 mph
precip
14%
09.05
sat
DAY
68°F
SE 7 mph
precip
16%
NIGHT
62°F
SE 7 mph
precip
10%
09.06
sun
DAY
74°F
SE 9 mph
precip
2%
NIGHT
62°F
S 9 mph
precip
10%
09.07
mon
DAY
64°F
NW 10 mph
precip
11%
NIGHT
58°F
S 7 mph
precip
16%

New Castle Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for New Castle was 84.3°F. The maximum and minimum values were 82.6°F and 86.2°F respectively.

New Castle on the Weather Map

Best Time to Visit New Castle
The most sunny months:
November 17 days
October 16 days
June 15 days
The most warm months:
July 89.9 °F
August 86.0 °F
June 83.9 °F
Warmest sea temperature:
July 84.1 °F
August 83.4 °F
September 77.2 °F
The most cold months:
January 37.3 °F
February 40.7 °F
December 42.3 °F
The most rainy months:
July 3 days
August 3 days
June 2 days
The most windy months:
March 9 mph
April 9 mph
January 8 mph
more details
USA Resorts:
NAME
F°
Boston +80
Chicago +82
Hawaii +84
Houston +108
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
all resorts
24 Hours Weather Forecast
New Castle
Local time: 17:26
25 aug, tuesday
1800 76°F
SE
6 mph
2100 72°F
E
5 mph
26 aug, wednesday
0000 70°F
SE
4 mph
0300 68°F
S
5 mph
0600 66°F
S
3 mph
0900 74°F
S
2 mph
1200 82°F
N
4 mph
1500 86°F
N
7 mph